At this young stage of legal design, the best thing to offer lawyers who want to offer better, excellent products to their clients is a guidebook.
What I envision is not a Blue Book but a White Book.
It can supply templates, rules, formats, and other guidelines for how to compose a usable legal document.
It is not about the content, it is about the document as a thing — its layout, its flow, its composition.
It regards a legal document as a product in itself.
It focuses on how the clients (and other stakeholders) will use it, interact with it, and live with it.
This book of good design patterns is essential for lawyers right now, and their clients.